WPQ-F88 Air distribution board matcheed with pneumatuc lubrication pump and oil-air spray valve is aoolied for oil-air lubrication system.It is composted mainly by 3 components of air source treatment,shutoff valve and pneumoelectric transfer.The air compressor passor through by filtrate,misted and divided in two lines and maintained its press states stability,one line is a driving force to move the pneumatic pump,and another line is a source of oil-air spray,the pneumatic pressure is monittored by pneumoelectric transfer.